as in must
something necessary, indispensable, or unavoidable
an extensive grounding in mathematics is a sine qua non for a career in architecture
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Recent Examples of sine qua non
Some are fast to embrace the admittedly exciting bold new possibilities of Artificial Intelligence as the future sine qua non of effective schooling.
—
Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
Frequency Becomes Unstable Frequency is the sine qua non of all electrical systems, from microgrids to the national grid.
—Llewellyn King, Forbes, 22 Nov. 2024
This consensus mechanism is a sine qua non for verifying transactions without relying on a central authority.
—Gary Weinstein, Forbes, 22 Nov. 2024
See All Example Sentences for sine qua non
Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
Frequency Becomes Unstable Frequency is the sine qua non of all electrical systems, from microgrids to the national grid.
—Llewellyn King, Forbes, 22 Nov. 2024
This consensus mechanism is a sine qua non for verifying transactions without relying on a central authority.
—Gary Weinstein, Forbes, 22 Nov. 2024
See All Example Sentences for sine qua non
Recent Examples of Synonyms for sine qua non
Noun
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Finally, and perhaps most obviously, in today’s office world, drinks and snacks are a must.—
Brit Morse,
Fortune,
7 July 2025
-
Pasta salad is always a must at the potluck, and this one has been around for a very long time.—
Nellah Bailey McGough,
Southern Living,
7 July 2025
Noun
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Among the new regulations, the most consequential are: 1) the requirement that climbers must summit at least one 7,000-meter (22,965-foot) peak in Nepal before applying for a permit for Mount Everest, and 2) the ban on solo expeditions on Mount Everest and all other 8,000-meter (26,247-foot) peaks.—
Emese Maczko,
Forbes.com,
8 July 2025
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The lawsuit claims the picnics are charitable expressive conduct and acts of peaceful assembly, and argues Tempe's permit requirements violate the advocates' First and 14th Amendment rights, which protect freedom of speech and assembly, and ensure due process and equal protection under the law.—
Taylor Seely,
AZCentral.com,
8 July 2025
Noun
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Pool had been working non-stop since the flood, seeming to be powered by a mix of necessity and purpose.—
Rachel Monroe,
New Yorker,
11 July 2025
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Regularly Communicate Changes, News And Events Share communications on a weekly, biweekly or monthly schedule, and include news on issues of necessity for your internal community.—
Expert Panel®,
Forbes.com,
11 July 2025
Cite this Entry
“Sine qua non.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sine%20qua%20non. Accessed 18 Jul. 2025.
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